Brothers Steve and Michael Berg, the duo behind the Iron Tomato, have another iron in the fire. Their new 78-seat small plates lounge — what they call a “food studio” — is an intimate, dinner-only, speakeasy-style restaurant big on atmosphere where sophistication, not rowdiness, rules.

The two had been thinking of opening a restaurant for quite some time, so when Gryphon’s Pub went out next door to their gourmet food store, they jumped at the chance. They opened two weeks ago.

Steve says he and Michael wanted to bring something completely different to Mamaroneck Avenue, known for its beer bars and youthful crowd. “The idea was to create a more V.I.P. dining experience with a crowd that’s 25 and older, where no ripped T-shirts are allowed, and the experience is meant to be as cozy and delightful for a party of 10, as it is for two.” The brothers also wanted to build on their Iron Tomato following with a name that reflected attention to premium ingredients including high-end liquor and a classic cocktail menu. Sample drinks include “The 55,” the restaurant’s version of the classic mojito; “Sarateeba,” a Brazilian influenced concoction made with Leblon cachaça and strawberry purée; and “Blood and Sand,” consisting of aged scotch, a touch of cherry liquor and sweet vermouth.

As for the food, expect contemporary modern cuisine with a gourmet spin. Items include garlic and rosemary marinated lamb chops (American, not New Zealand, lamb), pork belly with apple glazed barbecue, a five-spice blend ahi tuna, and a signature dish, a miso-marinated Chilean sea bass. Brunch options include a loaded French toast (cinnamon raisin bread with a bacon syrup reduction) and steak and eggs featuring a 10-ounce rib eye.